Home / 20,852.08-28,768.68-11,893.12

Finding the Fourth Proportional to 20,852.08, 28,768.68 and 11,893.12

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Solution

The fourth proportional to 20,852.08, 28,768.68 and 11,893.12 is: 16,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.08 : 28,768.68 = 11,893.12 : x
  2. Step 2: Convert to fraction form
    20,852.08/28,768.68 = 11,893.12/x
  3. Step 3: Cross multiply
    20,852.08x = 28,768.68 × 11,893.12
  4. Step 4: Simplify right side
    20,852.08x = 342,149,363.48
  5. Step 5: Solve for x
    x = 342,149,363.48/20,852.08
  6. Step 6: Final answer
    x = 16,408.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.